Top-roll construction for spinning frames



June 10, 1924.

w. E. WARDWELL TOP ROLL CONSTRUCTION FOR SPINNING FRAMES 5/ I Filed Nov. 17, 1923 K ,Zfa /@7 z;m \g Wham .myawezz Patented June 10, 1924.

WILLIAM EMORY WARDWELL, OF WORCESTER, MASSACHUSETTS.

Tor-301.1. cons'muc'non ron srnmme names.-

I Application filed November 17, 1922. Serial 1T0. 601,581.

To all whom it mag concern: 1

Be it known that 1, WILLIAM EMORY WARDWELL, a citizen of the United States, residing at Worcester, Worcester and Commonwealth of Massachusetts, have invented new and useful Improvements in a Top-Roll Construction for Spinning Frames, of which the \following, together with the accompanying drawings, is

a specification.

My invention relates to top rolls for spinning frames drawing frames, Speeders, and other similar textile machines, and has for its object to provide certain improvements in 35 the construction and arrangement of, the

parts of top rolls, whereby top rolls emodying my invention may be cheaply and easily manufactured, and when employed in a spinning frame, will bemore effective in opfio eration than top rolls heretofore constructed. My invention contemplates an improved to roll construction in which the individua top rolls are adapted to rotate independently of each other on a one piece cen- 255 tral arbor having suitable end pieces coacting therewith, whereby the top roll assem bly can be supported in the usual cap bars provided on spinning frames, without .ne cessitating any alteration of the cap bars. My invention further contemplates a novel arrangement of the several parts entering into the top roll assembly, whereby the detrimental effects, due to the collection. of

fly, lint and dust, are reduced to a minimum, owing to the fact that the only rotating parts of the top roll assembly are complete- Y ly enclosed within the rolls and that novel effective means are provided for preventing the access of fly, lintand dust to the rotating parts. My invention further contemplates an improved arrangement for readily lubricating the bearings of the top rolls Without changing the position of any of the parts entering into the dust proof construction. Thev above and other advantageous features of my invention will hereinafter more fully appear, reference being had to the accompanying drawings in which,

Fig. 1 is a view, partially in'longitudinal section, and partially in elevation, of a top roll construction embodying my invention.

in the county of.

Fig. 2 is an end view of the parts shown in Fig. 1.

Fig. 3 is an enlarged transverse sectional I view of a portion of the parts shown in Fig. 1, and illustrating a modification of the means for supporting the central arbor.

Fig. 4' is a sectional view similar to Fig. 3, showing a further modification in the means for supporting the central arbor.

Fig. 5 is a plan view of a portion of a cap bar supporting anumber of top rolls constructed in accordance with my invention. Fig. 6 is a sectional view along the line 6-6 of Fig. 5, looking in the direction of the arrows.

Like reference characters refer to like parts in the different figlires.

top roll construction comprises a central arbor 1 having reduced portions 2 on each side of its middle section, thereby providing shoulders 3. Each reduced ortion 2 1s provided with screw threads 4, and the end portions 5 of the arbor 1 are further reduced beyond the screw threads 4. A collar 6 is pressed on each reduced portion 2 to abut the shoulder 3, and is provided with a portion 7 of reduced diameter, beyond which is formed a conical ball seat 8.

A cylindrical sleeve 9 having an internal diameter somewhat greater than the diameter of a reduced portion 2 of the arbor, is rotatably supported with respect to the arbor l'bya' series of balls 10 interposed between the conical seat 8 of the collar 6 and a concave seat 11 provided near one end of the sleeve 9. A second series of balls 12 are interposed between a concave seat '13 provided' at the other end, of the sleeve 9 and a conical seat 14 provided on a collar 15fcoacting with-the screw threads 4: of the arbor portion 2. The collar 15 is provided with a reduced portion 16,v and the sleeve 9 is extended ,beyond each ball seat '11 and 13 to provide annular lips 17, surrounding the collar portions 7 and 16. The lips 17 have an inside diameter slightly greater than the reduced portions 7 and 16,.andeach lip 17 terminates just short of the'shoulder at the 'end of each reduced. portion 7 and 16,

thereby leaving a narrow space 18 extending substantially at right angles to the concentric surfaces of the collars 6 and 15 of the sleeve 9. The sleeve 9 is further provided with a passage 19 extending transversely therewith, 'the purpose of which will be hereinafter described.

A hollow cylindrical shell 20, covered with a layer 21 of suitable frictional material, such as leather, surrounds each sleeve 9, the inside diameter of each shell 20 being such that it may be slipped over a sleeve 9 and secured in position thereon by means of a spring locking ring 22. Each locking ring 22 is seated in a groove 23 provided on a sleeve 9, and normally projects beyond the periphery of the sleeve 9, so that when the shell 20 is slipped over the sleeve 9, the ring 22 is compressed. The inner surface of the shell 20-is provided with a groove 2 which is adapted to receive the rin 22, and thereby position the shell 20 on t e sleeve 9 and ,cause it to rotate therewith on the halls 10 and 12.

Each reduced portion 5 of the arbor 1" has an end piece 25 pressed thereon, which is adapted to fit closely in any one of the several notches provided on the usual form of cap bar. A portion of such a cap bar is indicated at 26 in Fig. 5, the cap bar being provided with a plurality of spaced arms 27. The opposed surfaces of adjacent arms 27 are provided with pairs of alined notches 28 which-have been heretofore adapted to receive the ends of top roll shafts. The outside dimension of each end piece 25 is slightly less than the width of the notches 28 in the cap bar arms 27, so that the central arbor 1 is held in axial alinement with respect to the cooperating knurled steel 7 rolls, and at the same time is capable of free movement in a plane at right angles to the cap bar arms. It is apparent from an inspection of Figs. 5 and 6, that the clearance between adjacent top roll shells 20 is such that in order to employ my improved top roll construction in connection with a unitary central arbor extending from one cap bar arm to another, it may be necessary to so reduce the end portions of the arbor that they will not fit th notches in the usual cap bar arms. Consequently, the provision of the endpieces 25 permits my improved top roll construction to be used in connection with existing cap bars without necessitating any changes therein.

Referring again to Fig. 1, it isapparent that when the various parts previously described have been assembled on the arbor 1,

the respective series of balls 10 and 12 may be properly adjusted with respect to their seats, by turning the adjusting collar 15 on the threaded portion of th arbor. When the proper adjustment has been obtained, the collar 15 is secured in position againm neeaeae axial movement, by means of a lock nut 29, after which, each end piece 25 is pressed on the end portions of the arbor. \When the collars 15 have been locked in position ant the end pieces forced on, it is most desirable that this adjustment be maintained, and in order to insure that the ball bearings may be conveniently lubricated after their assembly, T have provided a passage 19 in each sleeve 9. When it is desired to insert lubricant through the passage, all that is necessary is to slip the shell 20 off of its sleeve 9, the ring 22 compressing enough to be unseated from the groove 24. Lubricant may then be inserted through the opening 19 without disturbing in any way the adjustment of the ball bearings, whereupon the shell 20 may be replaced and the opening 19 completely covered to prevent the entrance of fly, lint, and dust therein.

As previously stated, it is one of the objeots of my invention to provide a novel construction in which the detrimental ef fects, due to the collection of fly, dust, and lint on the rotating parts, are reduced to a minimum. This particular object is obtained by the construction of the ball collars 6 and 15 and the sleeve 9 in such a manner that the necessary clearance spaces between these members are so disposed as to practically exclude all foreign matter from the balls 10 and 12. From a consideration of Fig. 1, it is apparent that any fly, lint, or dust, collecting on the inner surface of a shell 20, must first pass through the spaces 18before it can reach either set of balls, but as these spaces 18 are disposed in planes substantially at right angles to the axis of rotation of the arbor, rotation of the arbor itself, will tend to keep these spaces clear by centrifugal action. As a matter of fact,

any leakage of lubricant from the hearings will be radially outward through the spaces 18, so that the only lubricant that can come into contact with fly, lint or dust, will be lubricant which cannot return to the ball bearings themselves.

A modification in the manner of locking the adjustable bear-ing collar 15 on the arbor 1, is shown in Fig. 3, in which a looking sleeve 80 surrounds the end portion 5 of the arbor, and is provided with an enlarged head 31 internally threaded, so that it may be employed to lock the adjusting collar 15 on the arbor. The outer end portion of the sleeve 30 is substantially of the 11 the end portion 5 of the arbor 1, the extendits ed portion 33 being of substantially the same dimensions as an end iece 25. A tapered pin 34 extends throug the portion 33 and the arbor 1 in order to secure the collar 32 against axial movement on the arbor 1, after it has been adjusted. The portion 33 is provided with a number of angularly spaced holes 35 for reglstermg with the opening 36 in the arbor 1, which recelve's the pin 34, thereby allowing the collar 32 to be locked in different angular positions.

From the foregoing it is apparent thatby my invention I have provided an improved top roll construction characterized by a one piece central arbor, on which the top roll shells are supported for independent rotation, by anti-friction bearings I completely I clearance space therebetween,

which space are at right angles to each enclosed and shut off from the fly, lint, and

dust which is always present in large quantities in the vicinity of textile machines. The hearings in my improved construction are also capable of being readily lubricated without disturbing their adjustment in any way. Furthermore, my improved construction is adapted to be applied to anyexisting form of cap bar, by the provision of end pieces on the arbor of the proper size to fit the notches ina cap bar. 7

While I have shown my invention in its simplest and preferred form, it is not so limited, but is susceptible of mucus modifications within the scope of'the appended claims- I claim,

1. An improved top roll construction,

comprising a central arbor, a cylindrical shell surrounding said arbor and open at one end and anti-friction devices interposed between said arbor and said shell, the inner surface of which is in communication .with said devices through a narrow clearance space having a right angled turn therein.

2. An improved top roll comprising a central arbor, a cylindrical shell surrounding said arborand, open at one end, and anti-friction devices interposed between said arbor and said shell, the inner surface of .which is in communication with said devices through anarrow clearance space, a portion of which is disposed in a planeat right angles to the axis of rotation of said arbor.

3. An improved top roll construction, comprising a central arbor, a cylindrical shell surrounding said arbor, a sleeve secured to said shell to turn therewith, a collar mounted on said arbor, and anti-friction members interposed between said sleeve and said collar, a portion of said sleeve.

overlapping said collar, with a narrow portions of other. I

4. An improved top roll COIISlJI'HCtIOD,

construction,

comprising a central arbor, a cylindrical shell surrounding said arbor, a sleeve secured to said shell to turn therewith, a collar mounted on said arbor, and anti-friction members interposed between said sleeve and said collar, a portion' of said sleeve overlapping said collar, with anarrow clearto surround the reduced portion of said collar, with narrow annular clearance spaces at right angles to each other between said sleeve and said collar and anti-friction members interposed between said collar and said sleeve.

6. An improved top roll construction, comprising a central arbor, a shell surrounding said arbor a collar mounted on said arbor and provided with a portion of reduced diameter, a sleeve secured to said shell and having a ortion thereofextended tosurround the rediiced portion of said collar, with a right angled clearance space between said sleeve and said collar, and antifriction members interposed between said collar and said sleeve.

7. An improved top roll construction, comprising a central arbor, a cylindrical shell surrounding said arbor, a sleeve detachably secured to said shell to turn theresaid arbor, a collar mounted on said a with, anti-friction devices interposed besaid sleeve and said devices against longitudinal movement on said arbor, and a passage for lubricant extending from the outsi e of said sleeve between said collars to said anti-friction devices.

9. In a top roll mechanism, the conibination with a cap bar provided with spaced arms having notches therein, and a top roll assembly comprising a one piece arbor extending between said arms, the said arbor having reduced end portions for receiving bearing retaining members of members carried by the end portions of said arbor to 'fit Within the notches on said eep her ermms to axially aline said erhor.

10. In a top roll mechanism, the combinetion With a cap bar provided with spaced 6 arms having notches therein, and it top will assembly comprising a one piece arbor extending between said arms, and having its end portions reduced to a, diameter less than r eereee the Width of said notches for the reeeptien of hearing retaining members, or members re cerried by said reduced portions ef the erhor to fit within elined notches on said cap bar arms.

Dated this tenth day or November, 1922..

WILLIAM. EMURY WARDWELL 

